Well, honey, that's an equilateral triangle you're looking at. All three sides are the same length, so it's a perfect little equilateral package. No need to overcomplicate things here, it's as simple as it gets.
No.
Two sides of a triangle are not sufficient to determine its area.
Scalene
No. The two shortest sides, 2cm and 4cm, add up to 6cm. 6 cm is shorter than 7cm, so those three sides will not make a triangle.
The height has not been given but the area of the triangle is: 0.5*height*base
No.
Two sides of a triangle are not sufficient to determine its area.
The area of triangle is : 42.0
Area 51.
Scalene
No. The two shortest sides, 2cm and 4cm, add up to 6cm. 6 cm is shorter than 7cm, so those three sides will not make a triangle.
Yes, it can. And if you do the math, some basic trigonometry, you can calculate the angles in the triangle.
if it is a scalene triangle yes scalene triangle have no congruent sides and angles
It is: 3*7 = 21cm
A scalene triangle is simply a triangle where all of its sides are different lengths. One example of the side lengths of a scalene triangle are: 5cm, 6cm and 7cm
17.5cm squared
1/2*5*7 = 17.5 square cm * * * * * Only if these are the shorter legs of a right angled triangle and there is no justification for making that assumption. Two sides of a triangle are not sufficient to determine its area.