10GM Measurement Quiz

• 50 cm

• 100 cm

• 12.5 cm

• 10 cm

Answer explanation

Radius = diameter/2

• 5 mm²

• 50 mm²

• 500 mm²
• 5000 mm²

Answer explanation

The shaded area shown is closest to:

Answer explanation

Theta = 360 - 70 = 290

Area = 290/360 x pi x 4^2

The shaded area is closest to:

Answer explanation

Big circle Area = 6^2 x pi

Small circle Area = 2.5^2 x pi

Total area
= big circle area - small circle area

What is the surface area of a cube of side length 5 m?

• 100 m²
• 125 m²
• 225 m²

• 150 m²

Answer explanation

TSA cube = 6 x 5^2

What is the surface area of the prism?

Answer explanation

Front + Back Area
4 x 15 x 2 = 120

Side Area
4 x 9 x 2 = 72
Top + Bottom Area
15 x 9 x 2 = 270

TSA = 120 + 72 + 270 = 462

What is the surface area of the prism?

Answer explanation

Front + Back
21 x 28 x 0.5 x 2 = 588

Left
21 x 10 = 210
Bottom
28 x 10 = 280
Right

sqrt(21^2 + 28^2)x10 = 350
TSA = 588 + 210 + 280 + 350 = 1428

Which is closest to the curved surface area of a cylinder of radius 14 cm and height 20 cm?

Answer explanation

Open cylinder
i.e., minus 2 x pi x r^2

What is the volume of the prism?

Answer explanation

Rectangular prism

V = 15 x 4 x 9 = 540

Answer explanation

Volume = Area of Base x height

= 87 x 11

= 957