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The formula for the area of a triangle is A = -bh, in which b represents the length of the base and h ы represents the helght. If a triangle has an area of 90 mm and the height is 10 mm. What is the measure of the base? The measure of the base is mm.​

Respuesta :

joshscur

Answer:

18 mm

Step-by-step explanation:

Triangle Formula: A=[tex]\frac{1}{2}[/tex]b*h

Plug in:

90=[tex]\frac{1}{2}[/tex]b*10

obviously [tex]\frac{1}{2}[/tex]b=9, so just use mental math and do 2*9 to get 18

Check: [tex]\frac{1}{2}[/tex]18*10=90

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