BA and BD are radii of the circle, so triangle ABD is isosceles. Then angles BDA and BAD are congruent, and the remaining (central) angle ABD has measure

$m\angle ABD=(180-2\cdot20)^\circ=140^\circ$

Angles ABD and CBD are supplementary, so

$m\angle CBD=(180-140)^\circ=40^\circ$

and the answer is E.

8 0

3 years ago

Please help me asap its the end of the year and i need to get this in

Mademuasel [1]

Answer:

it would be 200 units

Step-by-step explanation:

if the length is twice the width and the perimeter only being 60 units, you would have 20 as your length and 10 as your width (20+20+10+10=60). Then if you multiply 20 and 10 you get 200

4 0

2 years ago

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Dennis drove for 12 minutes and went 8 1/2 miles in a time. At this rate, how many miles can he drive in one hour

Trava [24]

8.5/12=0.708333 1 hour=60 minuets 60x0.708333= 42.5 or 42 1/2 miles

5 0

2 years ago

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