Answer:
The circumference is 66cm
Radius = Diameter/2
= 21/2 CM
= 10.5 CM
Circumference of a circle = 2πr
= 2 × 22/7 × 10.5 CM
#1 is A & B (points connect)
#2 is A & B & D (because they all touch)
#3 I don't know
#4 I think it's G, C, & F
#5 D
Answer:
Not isosceles
Step-by-step explanation:
45 - (17 + 19) = 9
9 is the side length which is not equal to either of the other sides so the triangle is scalene.
It's a proportion. Set it up as 3/30 * x/11= 1.1
Answer:
22
Step-by-step explanation:
Since ABC is an isosceles triangle (we can deduce this because two of the angles are equal to each other), side AC = side AB
So, 2x - 24 = x - 2
Solving this equation gives the solution x = 22
Since the length of BC is x, BC = 22
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