Question

Find the area in square metet of the triangle whose base and altitude are as under base = 7.5cm altitude =4cm

Answer 1

Base = 7.5cm = 0.075m
Altitude = 4cm = 0.04m
Hence,
Area of triangle = 1/2 × base × altitude
= 1/2 × 0.075 × 0.04
= 0.0015 square metre

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Answer 2

Base=7.5 cm

Altitude=4 cm

Area of a triangle=1/2×b×h

=1/2×7.5×4

=15 cm^2

Now we have to convert into metre square=(15 ÷10000) m^2

=0.0015 m^2