The possible error made by Beth is directly multiplying scale of 5 to area of original triangle and getting area of enlarged triangle, which is wrong.
Step-by-step explanation:
Originally Triangle has height =3.5cm and width=4cm
Beth enlarged the same triangle by scale of 5 and calculate area of triangle
The area of triangle as given as A=
Area of original triangle is A =
Since, The triangle is enlarged by scale of 5
New height =3.5x5 = cm and new width=4x5cm
Area of new triangle is
A' =
A' =
A' =
A' =
Now, Looking what error beth made is:
Beth found Area of new triangle is A' =
The possible error made by Beth is directly multiplying scale of 5 to area of original triangle and getting area of enlarged triangle, which is wrong.
The measure of the angle is half the measure of the opposite arc.
.. ? = 78°/2 = 39°
Answer: Answer; X = 5cm
The length of all three sides would be 13cm, 13cm and 10cm.
Step-by-step explanation: First of all the given triangle is an isosceles triangle which means two sides measure 2x + 3. The third side measures 2x. The perimeter measures the entire length of the triangle, which means, perimeter equals
(2x + 3)+ (2x + 3)+ 2x = 36
2x+3+2x+3+2x=36
6x + 6 = 36
Subtract 6 from both sides of the equation
6x = 36 -6
6x = 30
Divide both sides of the equation by 6
X =5cm.
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Step-by-step explanation: