Cho tam giác ABC có AB=AC. Tia phân giác của góc A cắt BC ở D a) Chứng minh tam giác ABD = tam giác ACD
b) Chứng minh AD vuông góc với BC
c) Vẽ DH vuông góc với AB( H thuộc AB), DK vuông góc với AC( K thuộc AC)
Chứng minh DH=DK

answer:

it will cost 480 dollars to refurbish the larger wood floor

step-by-step explanation:

as it's a ratio of 4 that costs 384 dollars, divide the price by the ratio

384 / 4 = 96 dollars

96 dollars per unit of the ratio

now to get the price to refurbish the larger wood floor, times the price by the units

96 * 5 = 480

answer: for each 3 girls there is 2 boys . 3: 2

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it will be a cylinder. with a diameter of 8 and 4 single pieces high

step-by-step explanation:

the answer is (-4,-4)

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