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jcollings44
18.08.2020 •
Mathematics
There is a triangle called XYZ the measurements are 12m 15m and 9m. What 2 kinds of a triangle is that? This would be helpful if someone answered this! UwU Tanks
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Ответ:
Right angle triangle
Step-by-step explanation:
12m
15m
9m
Assume the Longest side=15m
Using Pythagoras theorem
c^2=a^2 + b^2
Where,
c=hypotenuse
a=adjacent
b=opposite
Let a=9m
b=12m
c^2=a^2 + b^2
=9^2 + 12^2
=81 + 144
c^2=225
c=√225
=15m
Therefore, the triangle XYZ is a right angle triangle
Ответ:
21
Sofia cuts a piece in the shape of a kite for an art project
top two sides measure 20 cm each
bottom two sides measure 13 cm each.
One diagonal, EG, measures 24 cm
Find out the length of the other diagonal, DF.
explanation-
DE = EF = 20cm
DG = GF = 13cm
EG = 24cm
DF = ?
In kite shape
One diagonal is the perpendicular bisector of the other diagonal.
i.e EG is the perpendicular bisector of DF
i.e EG is divided into two equal parts
thus EA = AG = 12cm
in Δ EAF
By applying the pythagorus theorem
we have
EF² = FA²+ EA²
20² = 12² + FA²
400 -144 = FA²
256 =FA²
16cm = FA
Now in Δ DAG
DG² = AG² + DA²
13² = 12 ²+ DA²
169 -144 = DA²
25 = DA²
5cm = DA
Step-by-step explanation: