Find the area of a triangle whose base is 10 mm, and its height is 15 mm.

75mm²

Step-by-step explanation:

Area of a triangle

1/2 × base × height

= 1/2 × 10mm × 15mm

= 75mm²

in problems involving proportions, we can use cross products to test whether two ratios are equal and form a proportion. to find the cross products of a proportion, we multiply the outer terms, called the extremes, and the middle terms, called the means.

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the answer is c just got it on ed

step-by-step explanation: