Add all of the hours together than divide by 5 should get 40
A = 1/2 hb
20 = 1/2 x 4 x b
20 = 2 b
b = 20 /2
b = 10
answer is <span>10 m</span>
Answer:B
Step-by-step explanation:
Answer:
<h2> 434</h2>
Step-by-step explanation:
|GI| = 2•16 = 32
|JI| = 28
|GJ|² + |JI|² = |GI|² {Pitagoras}
|GJ|² + 28² = 32²
|GJ|² + 784 = 1024
|GJ|² = 240
|GJ| = √240 = √[16•15] = 4√15
A = |GJ•|JI| = 28•4√15 = 112√15 = 433.7741... ≈ 434
