Answer:
<h2>6.28</h2>
Step-by-step explanation:
<h2>Hi there</h2><h3>to understand this </h3><h3>you need to know about</h3>
- algebra
- circle
- area of semi-circle=½×πr²
it says to figure out the area of <u>semi-circle </u>not full circle
so
using the formula of area of semi-circle
<h3>=½πr²</h3>
=½×3.14 × 2²
=2×3.14
=6.28
Answer:
870
Step-by-step explanation:
$435 + $395 = $830
$830 + $10 = $840
$2 x 15 = $30
$840 + $30 = $870
Angles 1 and 4 are neither linear pair or vertical angles
