Mensurationhard · Past Paper
Find the TSA of a right prism with height 10 cm and base a right triangle with legs 3 cm and 4 cm.
A132 sq. cm
B120 sq. cm
C144 sq. cm
D156 sq. cm
✓ Correct Answer: A — 132 sq. cm
Perimeter = 3+4+5=12. LSA = 12*10=120. Base Area = 1/2*3*4=6. TSA = 120 + 2*6 = 132 sq. cm.
Share this question
More from Mensuration
- A cylinder has radius 'r' and height '2r'. A sphere has radius 'r'. What is the ratio of their volumes?
- The base of a right pyramid is a square of side 10 cm. If its volume is 400 cm³, find its total height.
- Find the area of a trapezium whose parallel sides are 25 cm and 13 cm and non-parallel sides are 10 cm each.
- What is the area of an equilateral triangle with side length 4 cm?
- The volume of a sphere is doubled. What is the ratio of the new radius to the old radius?