Answer:
Step-by-step explanation: Formula to find an area of a triangle A= 1/2base x height
Data
h=12mm A=1/2 base x height
b=14mm. A= 1/2 x (14mm x 12mm)
A=? A= 168mm^2(square) /2
A= 84mm square
Using Pythagoras in the first question
c=

which is approximately 16.5
for the second question
we also use Pythagoras

Answer:
answer it s 12. just put the value
Answer:
225
Step-by-step explanation: if you simply multiply 300 by 3 you get 900 and dividing it you get 225 or you can simply divided 300 by 4 and get 75 before multiplying by 3 for 225.