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Area of Triangles 11.1B
By Larry Mooney
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Last updated over 1 year ago
10 questions
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Question 1
1.
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.
40 in²
20 in²
5 in²
80 in²
Question 2
2.
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
240 mm²
180 mm²
Question 3
3.
Find the area of this triangle.
149.5 mm²
137.5 mm²
189.5 mm²
119.5 mm²
Question 4
4.
Find the area of this triangle.
You are going to have to use Pythagorean Theorem to find the height.
129.9 m²
259.9 m²
149.9 m²
189.9 m²
Question 5
5.
Find the area of this triangle.
144.5 in²
154.5 in²
138.5 in²
134.5 in²
Question 6
6.
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 = 91.13 cm
A = 212.5 cm², P = 81.13 cm
A = 212.5 cm², P = 57 cm
A = 218.5 cm², P = 71.13 cm
Question 7
7.
Find the area of this triangle.
240 in²
140 in²
120 in²
440 in²
Question 8
8.
Find the perimeter of this triangle.
26.8 ft
14.8 ft
36.8 ft
16.8 ft
Question 9
9.
Find the area of this triangle.
16 mi²
18 mi²
24 mi²
36 mi²
Question 10
10.
Find the area of this triangle.
12.75 km²
9.5 km²
4.75 km²
5.75 km²
