Find the area of the triangle shaped lawn whose base and heights are 1

1.	Find the area of the triangle shaped lawn whose base and heights are 12m.,7m. respectively. Find the total cost of laying lawn, if cost of grass is ₹ 300 per Sq. m.
Answer» Base of the triangle shaped lawn = 12 m. Height = 7 m. Area of triangle shaped lawn 1 = \(\frac {1}2\) × b × h = \(\frac {1}2\) × 12 × 7 = 6 × 7 = 42 Sq.m Cost of grass for laying in lawn per 1 Sq.m = ₹ 300 Cost of grass for laying in lawn for 42 Sq.m = ₹ 300 × 42 = ₹ 12,600

Find the area of the triangle shaped lawn whose base and heights are 12m.,7m. respectively. Find the total cost of laying lawn, if cost of grass is ₹ 300 per Sq. m.

Answer»

Base of the triangle shaped lawn = 12 m.

Height = 7 m.

Area of triangle shaped lawn 1

= \(\frac {1}2\) × b × h

= \(\frac {1}2\) × 12 × 7

= 6 × 7 = 42 Sq.m

Cost of grass for laying in lawn per 1

Sq.m = ₹ 300

Cost of grass for laying in lawn for 42

Sq.m = ₹ 300 × 42 = ₹ 12,600