Step-by-step explanation:
I think what is meant in the triangle ABC we have the three angles.
the sum of all angles in a triangle is airways 180 degrees.
so,
180 = A + B + C
180 = 42 + B + C
now, we know also that
B = 5×C
so, we can use that above
180 = 42 + 5×C + C
138 = 6×C
C = 138/6 = 23 degrees
B = 5×C = 5×23 = 115 degrees
4. because it is reduced and the simplest to understand
Answer: {x,y} = {-3,-4}
Step-by-step explanation:
Answer:
4.5 cm
Step-by-step explanation:
KL = LM as triangle is isosceles
LM = KM as LF = FM = KN = NM, so the triangle is equilateral
EF ║ NM as LE⊥EF and LN⊥NM
EF is half the midsegment as ∠KLN ≅ ∠MLN, and LN is angle bisector of ∠KLM
Midsegment is half the side length, and all sides are 18 cm.
EF = 1/2(1/2*18) = 4.5 cm
Answer:
It is given that Rectangle Q has an area of 2 square units.
Thea Drew a scaled version of Rectangle Q and marked it as R.
As you must keep in mind If we draw scaled copy of pre-image, then the two images i.e Pre-image and Image are similar.
As you have not written what is the scale factor of transformation
Suppose , Let the Scale factor of transformation= k
Rectangle Q = Pre -image, Rectangle R= Image
If, Pre-Image < Image , then scale factor is k >1.
But If, Pre-Image > Image , then Scale factor will be i.e lies between, 0<k<1.
