Area of Triangles 11.1B

10

Find the area of this triangle.
Hint: The base length of this triangle is 5in. The height of this triangle is 8 in.
You will multiply the base by the height. Then divide by 2. Don't forget the divinding by 2 part.

20 in²

40 in²

5 in²

80 in²

10

What is the area of this triangle?
You will have to use Pythagorean Theorem to find the height of this triangle.
12² + x² = 20²

220 mm²

340 mm²

180 mm²

240 mm²

10

Find the area of this triangle.

189.5 mm²

149.5 mm²

119.5 mm²

137.5 mm²

10

Find the area of this triangle.
You are going to have to use Pythagorean Theorem to find the height.

259.9 m²

129.9 m²

189.9 m²

149.9 m²

10

Find the area of this triangle.

144.5 in²

138.5 in²

154.5 in²

134.5 in²

10

Find the area and perimeter of this triangle.
You will have to do Pythagorean Theorem twice in this problem for the perimeter.

A = 212.5 cm², P = 57 cm

A = 218.5 cm², P = 71.13 cm

A = 212.5 cm², P = 91.13 cm

A = 212.5 cm², P = 81.13 cm

10

Find the area of this triangle.

440 in²

240 in²

120 in²

140 in²

10

Find the perimeter of this triangle.

26.8 ft

14.8 ft

36.8 ft

16.8 ft

10

Find the area of this triangle.

18 mi²

16 mi²

24 mi²

36 mi²

10

Find the area of this triangle.

12.75 km²

9.5 km²

5.75 km²

4.75 km²

Area of Triangles 11.1B

Find the area of this triangle. Hint: The base length of this triangle is 5in. The height of this triangle is 8 in. You will multiply the base by the height. Then divide by 2. Don't forget the divinding by 2 part.

What is the area of this triangle?You will have to use Pythagorean Theorem to find the height of this triangle. 12² + x² = 20²

Find the area of this triangle.

Find the area of this triangle. You are going to have to use Pythagorean Theorem to find the height.

Find the area of this triangle.

Find the area and perimeter of this triangle.You will have to do Pythagorean Theorem twice in this problem for the perimeter.

Find the area of this triangle.

Find the perimeter of this triangle.

Find the area of this triangle.

Find the area of this triangle.

Find the area of this triangle. Hint: The base length of this triangle is 5in. The height of this triangle is 8 in. You will multiply the base by the height. Then divide by 2. Don't forget the divinding by 2 part.

What is the area of this triangle?You will have to use Pythagorean Theorem to find the height of this triangle. 12² + x² = 20²

Find the area of this triangle.

Find the area of this triangle. You are going to have to use Pythagorean Theorem to find the height.

Find the area of this triangle.

Find the area and perimeter of this triangle.You will have to do Pythagorean Theorem twice in this problem for the perimeter.

Find the area of this triangle.

Find the perimeter of this triangle.

Find the area of this triangle.

Find the area of this triangle.

Find the area of this triangle.
Hint: The base length of this triangle is 5in. The height of this triangle is 8 in.
You will multiply the base by the height. Then divide by 2. Don't forget the divinding by 2 part.

What is the area of this triangle?
You will have to use Pythagorean Theorem to find the height of this triangle.
12² + x² = 20²

Find the area of this triangle.
You are going to have to use Pythagorean Theorem to find the height.

Find the area and perimeter of this triangle.
You will have to do Pythagorean Theorem twice in this problem for the perimeter.

Find the area of this triangle.
Hint: The base length of this triangle is 5in. The height of this triangle is 8 in.
You will multiply the base by the height. Then divide by 2. Don't forget the divinding by 2 part.

What is the area of this triangle?
You will have to use Pythagorean Theorem to find the height of this triangle.
12² + x² = 20²

Find the area of this triangle.
You are going to have to use Pythagorean Theorem to find the height.

Find the area and perimeter of this triangle.
You will have to do Pythagorean Theorem twice in this problem for the perimeter.