please answer this question
Attachments:
Answers
Answered by
0
Answer:
30 cm square
Step-by-step explanation:
AB=5 cm = Base
AC= 12 cm = Height
Area= 1/2 * b * h
A=1/2*5*12
A= 60/2
A=30 cm square
please mark brainlist answer
Answered by
0
Answer:
Step-by-step explanation:
Using Heron's Formula:
s= (a+b+c)÷2
s=(5+12+13)÷2
s=15
Area=√{s(s-a)(s-b)(s-c)}
=√{15(15-5)(15-12)(15-13)}
=√{15×10×3×2}
=√900
=30
Therefore, area of triangle ABC is 30 cm^2.
Now, we know that area of triangle ABC is 30.
Using the formula,
Area = 1÷2 × base × height
Where base = 13 and height = AD.
30 = 1÷2 × 13 × AD
30= 13× AD ÷2
30× 2= 13 × AD
60 = 13 × AD
13×AD=60
AD =60÷13
AD = 4.62 cm.
Similar questions