backdapp backdapp
  • 24-03-2022
  • Mathematics
contestada

pls answer the question attached.
I WILL MARK U BRAINLIST

pls answer the question attached I WILL MARK U BRAINLIST class=

Respuesta :

jimrgrant1 jimrgrant1
  • 24-03-2022

Answer:

area = 84 cm²

Step-by-step explanation:

the quadrilateral is made up of 2 triangles ABD and BDC

area of Δ ABD = [tex]\frac{1}{2}[/tex] bh ( b is the base and h the perpendicular height )

A = [tex]\frac{1}{2}[/tex] × BD × AE = [tex]\frac{1}{2}[/tex] × 14 × 7 = 7 × 7 = 49 cm²

area of Δ BDC = [tex]\frac{1}{2}[/tex] × BD × CF = [tex]\frac{1}{2}[/tex] × 14 × 5 = 7 × 5 = 35 cm²

area of ABCD = 49 + 35 = 84 cm²

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