It is impossible for a triangle to be both right and acute.
What is triangle?
" Triangle is defined as the 2-dimensional closed figure with three sides , three vertices and three angles enclosed in it."
According to the question,
It is impossible for a triangle to be,
a. Both isosceles and acute : Isosceles means two sides of a triangle are equal and acute means measure of an angle is less than 90°.
It is possible for a triangle.
b. Both equilateral and acute : Equilateral means three sides of a triangle are equal and acute means measure of an angle is less than 90°.
It is possible for a triangle.
c. Both scalene and acute : Scalene means three sides of a triangle are not equal and acute means measure of an angle is less than 90°.
It is possible for a triangle.
d. Both right and acute : Right triangle means one of the angle of a triangle is equals to 90°and acute means measure of an angle is less than 90°. If it is right angle triangle it is not consider as acute angled triangle.
Hence, it is impossible for a triangle to be both right and acute.
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