A right-angled triangular metal sheet has sides 30 cm, 40 cm and 50 cm
MATHEMATICS · Subjective · CBSE · Mathematics · Area · Area
Problem
A right-angled triangular metal sheet has sides 30 cm, 40 cm and 50 cm.
(a) Compute its area.
(b) The sheet is to be reshaped into a rectangle of the same area with one side fixed at 15 cm. Find the length of the rectangle.
(c) A uniform border 2 cm wide is planned all around the rectangle obtained in (b). Calculate the area of metal required exclusively for the border.