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2 years ago

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The diagram below shows a triangular metal plate with sides 4.5cm,6cm and 7.5cm. it has three small circular holes of radius 4mm

.calculate the area of the plate to the nearest square centimeters.

1 answer:

Shtirlitz [24]2 years ago

3 0

Answer:

d = 4.5 cm

A = 1/4 (p x d²)

= 1/4 (3.14 x d x d)

= 1/4 (3.14 x 4.5 cm x 4.5 cm)

= 15.9 cm2

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