D. 7/3
https://www.calculatorsoup.com/calculators/math/fractionsequivalent.php?operand=2+1%2F3&action=solve
The first one is 17.7 after rounding off
a2+b2=c2
b2=19^2-7^2
b=17.664
The second one is 108
Volume of a prism=base area x length
=(1/2 x12.6x1.6) x 10.75
=108.36mm3
Answer:
your anserw is 1,300
Step-by-step explanation:
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Answer:
∠CAD = 44⁰
∠ACD = 44⁰
∠ACB = 136⁰
∠ABC = 22⁰
Step-by-step explanation:
To calculate m∠CAD;
Line AD = Line DC,
thus ∠CAD = ∠ACD = ¹/₂(180 - 92°) [sum of angles in a triangle.]
∠CAD = ¹/₂ x 88 = 44⁰
Also, ∠ACD = 44⁰
To calculate m∠ACB;
∠ACB = 180 - ∠ACD [Sum of angles on a straight line]
∠ACB = 180 - 44
∠ACB = 136⁰
To calculate m∠ABC;
Line CB = Line CA
Thus, ∠ABC = ∠CAB = ¹/₂(180 - ∠ACB) [sum of angles in a triangle.]
∠ABC = ¹/₂(180 - 136)
∠ABC = ¹/₂ x 44
∠ABC = 22⁰