Page 110 - Mathematics_Std_4

12 × 26
= cm 2
2

312
= cm 2
FOR ONLINE READING ONLY
2
= 156 cm 2

Therefore, the area of the triangle KLM is 156 cm .
2

Exercise 3

1. Find the area in each of the following shapes:

(a) B (a) Z 24 cm L

14 cm
19 cm

D 18 cm C

M
(c) R 10 m S (c)

M

10 m
5 cm 20 cm N

L
T

2. A triangular table surface has a height of 6 metres and a

base of 3 metres. Find the area of the table surface.

103

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MATHEMATICS STD 4 PB 2024.indd 103 06/11/2024 17:17:25
MATHEMATICS STD 4 PB 2024.indd 103