krishamavani krishamavani

01-01-2024
Mathematics

contestada

In Figure 1, ABCD is a rectangle with AB = 12 cm and BC= 7 cm. AK= BL= CM= DN = x cm. If the area of KLMN is 54 cm², find x.

In Figure 1 ABCD is a rectangle with AB 12 cm and BC 7 cm AK BL CM DN x cm If the area of KLMN is 54 cm find x class=

Respuesta :

georgepahno georgepahno

01-01-2024

2(1/2)x(7 - x) + 2(1/2)x(12 - x) + 54 = 84

7x - x² + 12x - x² = 30

-2x² + 19x - 30 = 0

2x² - 19x + 30 = 0

(2x - 15)(x - 2) = 0

x = 2

Answer Link

Otras preguntas

Write an equation in point-slope form for the line through the given point with the given slope. (9,-1); m=4/3. I need help!

Which president first held a Fourth of July celebration at the White House? George Washington John Adams Thomas Jefferson James Madison

question number 4 please help

What American President was famous for playing golf every Fourth of July?

This is inverse functions...any help on 3aii?

What American President was famous for playing golf every Fourth of July?

The song “America” by Neil Diamond conveys a positive message about what often contentious issue?

The Virginia town where Robert E. Lee surrendered to Ulysses S. Grant in 1865, ending the Civil War

Who was Samuel F.B. Morse?

What American President was famous for playing golf every Fourth of July?