The surface area of a cell phone screen is 9000 mm2. Use the fact that 10 mm = 1 cm to convert this area to cm2. Round your answer to the nearest whole number. Do not type the units in the space below.

9,000 mm² = 90 cm²

Step-by-step explanation:

Given

A cell phone

Surface Area = 9,000mm²

10 mm = 1 cm

Required

Convert this area to cm²

From the question, we have that

We start by taking square of both sides

Then multiply both sided by 90

At this point, we've been able to convert 9,000 mm² to cm² equivalent;

Hence, 9,000 mm² is equivalent to 90 cm²

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