Ivyheathersidn
Answered

IDNLearn.com makes it easy to find answers and share knowledge with others. Join our community to receive prompt and reliable responses to your questions from knowledgeable professionals.

Triangle ABC has a height of 8 cm and an area of 42cm².
Calculate the length of BC.

Sagot :

BC must be base

  • Height=8cm
  • Area=42cm^2

We know

[tex]\boxed{\sf Area_{(Triangle)}=\dfrac{1}{2} Height\times Base}[/tex]

[tex]\\ \sf\longmapsto 42=\dfrac{1}{2}8BC[/tex]

[tex]\\ \sf\longmapsto 4BC=42[/tex]

[tex]\\ \sf\longmapsto BC=\dfrac{42}{4}[/tex]

[tex]\\ \sf\longmapsto BC=10.5cm[/tex]

BC must be base then

Area: 42cm²

Height: 8cm

Base: BC

1/2 × b × h = 42

1/2 × b × 8 = 42

b = 42/4

b = 21/2

BC = 21/2 or 10 1/2

Or 10.5cm

Must click thanks and mark brainliest

Your participation is crucial to us. Keep sharing your knowledge and experiences. Let's create a learning environment that is both enjoyable and beneficial. IDNLearn.com has the solutions to your questions. Thanks for stopping by, and see you next time for more reliable information.