Answer:
The surface area is 3140 feet².
What is Surface Area?
Surface area is the amount of space covering the outside of a three-dimensional shape.
Given that:
Diameter = 20 feet
radius = 20 ÷ 2 = 10 feet
Now, Surface area will be,
=2πr²+ 2πrh
= 2 × 3.14 × (10)² + 2 × 3.14 × 10 × 40
= 6.28 × 100 + 6.28 × 400
= 628 + 25.12 × 100
= 628+ 2512
= 3140 feet²
hence, the surface area is 3140 feet².
Step-by-step explanation:
Answer:
8
Step-by-step explanation:
Step-by-step explanation:
<YOZ = 60°
When two lines intersect each other, then four angles are formed. The angles that are opposite to each other at the intersection point are known as <em>vertically</em><em> </em><em>opposite</em><em> </em><em>angles</em><em>.</em><em> </em>VERTICALLY OPPOSITE ANGLES ARE ALWAYS EQUAL.
If < VOX = 90⁰, then <VOW = 60⁰.
<VOW and <YOZ are vertically opposite angles.
