jeromemurphyiv0709
jeromemurphyiv0709 jeromemurphyiv0709
  • 23-01-2020
  • Mathematics
contestada

What is the missing length?
10.2 cm
a
area=51 cm2

What is the missing length 102 cm a area51 cm2 class=

Respuesta :

ryc1413 ryc1413
  • 23-01-2020

Answer:

a = 10 cm

Step-by-step explanation:

Area of triangle, A = 51 cm²

base, b = 10.2 cm

Let height of triangle be a cm

Formula:-

[tex]A=\dfrac{1}{2}\times a\times b[/tex]

[tex]51=\dfrac{1}{2}\times a\times 10.2[/tex]

[tex]a=\dfrac{51\times 2}{10.2}[/tex]

[tex]a=10[/tex]

hence, the missing length is 10 cm

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