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lovelyheart5337
30.01.2020 •
Mathematics
Felicity drew a triangle on her paper. angle a of the triangle was 1/3 as big as angle b. angle c was bigger than angle b. which list can represent the angle measures in this triangle? a. 30°, 60°, 90° b. 25°, 55°, 100° c. 20°, 60°, 110° d. 15°, 45°, 120°
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Ответ:
D
Step-by-step explanation:
Let
If angle A of the triangle is 1/3 as big as angle B, then
. If angle C was bigger than angle B, then
Consider all options:
A. 30°, 60°, 90°. Angles 30° and 90° can be anglea A and B, But 60°<90°. False.
B. 25°, 55°, 100°. Here are no angles such that one of them is three times greater. False
C. 20°, 60°, 110°. Since 20°+60°+110°>180°, these angles cannot be triangle's angles. False
D. 15°, 45°, 120°. If
then
and
True
Ответ:
Simplest form of radical √245c³ = 7c√5c
Step-by-step explanation:
Given radical value:
√245c³
Find:
Simplest form of radical √245c³
Computation:
Given value
√245c³
Step 1 :
Prime factorisation of given radical value
Simplest form of radical √245c³ = √5 × 7 × 7 × c × c × c
By taking 7 and c from out of root
Simplest form of radical √245c³ = 7 × c √ 5 × c
Simplest form of radical √245c³ = 7c√5c