P5 Math · Chapter 10brightbit.net/worksheets

Area & Perimeter — Triangles & Composite Figures

Name: ______________________Class: ________Date: ____________Score: ____ / 10

1.
Find the area of a triangle with base 8 cm and height 5 cm.
(a) 20 cm²(b) 40 cm²(c) 13 cm²(d) 80 cm²
2.
A triangle has base 12 cm and area 42 cm². What is its height?
Answer: ____________________________________
3.
Find the perimeter of a triangle with sides 7 cm, 9 cm, and 11 cm.
Answer: ____________________________________
4.
A right-angled triangle has legs 6 cm and 8 cm. What is the area?
(a) 14 cm²(b) 24 cm²(c) 48 cm²(d) 28 cm²
5.
A composite figure is made of a rectangle (10 cm × 6 cm) and a triangle on top (base 10 cm, height 4 cm). What is the total area?
(a) 80 cm²(b) 100 cm²(c) 60 cm²(d) 20 cm²
6.
An L-shaped figure has outer dimensions 10 cm × 8 cm. A 4 cm × 3 cm rectangle is cut from the top-right corner. What is the area of the L-shape?
Answer: ____________________________________
7.
What is the area of a triangle with base 15 m and height 10 m?
(a) 75 m²(b) 150 m²(c) 50 m²(d) 100 m²
8.
A figure consists of a square of side 8 cm and a triangle with base 8 cm and height 6 cm attached to one side. Find the total area.
Answer: ____________________________________
9.
A triangle has the same base and height as a rectangle that has area 60 cm². What is the area of the triangle?
(a) 120 cm²(b) 30 cm²(c) 60 cm²(d) 15 cm²
10.
A park is shaped like a rectangle 20 m by 15 m with a triangular pond (base 8 m, height 5 m) inside. What is the grassy area of the park?
Answer: ____________________________________

Answer key — P5 Math: Area & Perimeter — Triangles & Composite Figures

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