A window is a rectangle 2 m wide and 1.5 m tall with a semicircle on top whose diameter is the 2 m width. Find the total area of glass in the window. Use π = 3.14 (answer in m², to 2 decimal places).

Question

Accepted Answer

4.57. Rectangle = 2 × 1.5 = 3 m². The semicircle has diameter 2 m, so radius 1 m, and area = 1/2 × 3.14 × 1² = 1.57 m². Total = 3 + 1.57 = 4.57 m². Forgetting to halve the circle gives 6.14; using 2 m as the radius gives 9.28.

A window is a rectangle 2 $m$ wide and 1.5 $m$ tall with a semicircle on top whose diameter is the 2 $m$ width. Find the total area of glass in the window. Use π = 3.14 (answer in $m^{2}$ , to 2 decimal places).

Step-by-Step Solution

Key idea: Parallelogram area

Master this chapter in 30 minutes a day.

More Class 7 Perimeter and Area practice

A window is a rectangle 2 m wide and 1.5 m tall with a semicircle on top whose diameter is the 2 m width. Find the total area of glass in the window. Use π = 3.14 (answer in m2, to 2 decimal places).

Step-by-Step Solution

Key idea: Parallelogram area

Master this chapter in 30 minutes a day.

More Class 7 Perimeter and Area practice

A window is a rectangle 2 $m$ wide and 1.5 $m$ tall with a semicircle on top whose diameter is the 2 $m$ width. Find the total area of glass in the window. Use π = 3.14 (answer in $m^{2}$ , to 2 decimal places).