Question

4. In this figure, ? BCA is a right angle, AD ? DB , DE is perpendicular to AB , AB = 20 in, and AC = 12 in. Find the area of quadrilateral ADEC.

Name: 4. In this figure, ? BCA is a right angle, AD ? DB , DE is perpendicular to AB , AB = 20 in, and AC = 12 in. Find the area of quadrilateral ADEC.
Uploaded: 2022-06-14T08:02:03-08:00
Duration: 6 min 27 s
Channel: Sri K
Description: 4. In this figure, ? BCA is a right angle, AD ? DB , DE is perpendicular to AB , AB = 20 in, and AC = 12 in. Find the area of quadrilateral ADEC.

          4. In this figure, ? BCA is a right angle, AD ? DB , DE is perpendicular to AB , AB = 20 in, and AC = 12 in. Find the area of quadrilateral ADEC.

Added by Melissa S.

Geometry A Common Core Curriculum

Ron Larson, Laurie Boswell 1st Edition

Instant Answer

Solved by Expert Sri K

06/14/2022

Step 1

Given AB = 20in and AC = 2in, we can use the Pythagorean theorem to find BC. BC^2 = AB^2 - AC^2 BC^2 = 20^2 - 2^2 BC^2 = 400 - 4 BC^2 = 396 BC = √396 BC = 2√99 BC = 2 * 3√11 BC = 6√11 Now, calculate the area of triangle ABC: Area of triangle ABC = 1/2 * AC * Show more…

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